Well, I went ahead and took my front drivers-side wheel off, then the inner plastic fender, to gain access to the back of the light assembly in hopes of getting some type of brush or spray in there to remove a film which has developed on the inside of the clear lens. The film really ages the look of the front end, as the "brightwork" is no longer that bright. Anyway, I took the plastic caps off both the HID and incandescent lights, but alas, there is no decent access to the area in front of the light lenses. As has been previously posted, these assemblies appear to have been designed without the abililty to gain access to the front cavity after being installed in the car. I had to try.